Tm3+/Yb3+共掺透明玻璃陶瓷的强红光上转换发光。

Intense red upconversion luminescence from Tm3+/Yb3+ codoped transparent glass ceramic.

机构信息

Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150001, China.

出版信息

Opt Lett. 2012 Jan 15;37(2):205-7. doi: 10.1364/OL.37.000205.

DOI:10.1364/OL.37.000205

Abstract

Tm3+/Yb3+ codoped transparent glass ceramic containing β-PbF2 nanocrystals was successfully prepared. After thermal treatment, emissions from the state of Tm3+ excited by 980 nm laser were greatly quenched by cross relaxation and the 700 nm luminescence from Tm3+:3F2,3→3H6 transition was strongly enhanced. A nearly monochromatic red luminescence band was observed. Based on the luminescence decay curves and Judd-Ofelt analysis, the strengthened cross relaxation played an important role in such phenomenon.

摘要

掺铥/铒共激活β-PbF2 纳米晶透明玻璃陶瓷的制备。经热处理后，980nm 激光激发Tm3+的跃迁态通过交叉弛豫而强烈猝灭，Tm3+:3F2,3→3H6 的 700nm 辐射跃迁得到显著增强，呈现近单谱带的红光发射。基于荧光衰减曲线和 J-O 理论分析，这种现象主要归因于增强的交叉弛豫过程。